Forget all of those Hollywood hair-sample crime-busting tales and join Julian for a real-world look at what your locks can say about you.
The breakthrough could one day let police date crime scene prints from years ago.
Kenyan crime fighters will soon have the tools to solve hippo whodunits, meerkat murders and other wildlife crimes.
Fictional TV crime dramas can influence real-world crimes and juries.
Check out our Historic Mysteries Solved CSI-Style pictures.